Phase shift mask, method of correcting the same and apparatus for
carrying out the method
    61.
    发明授权
    Phase shift mask, method of correcting the same and apparatus for carrying out the method 失效
    相移掩模,校正方法以及执行该方法的装置

    公开(公告)号:US5358806A

    公开(公告)日:1994-10-25

    申请号:US854861

    申请日:1992-03-19

    Abstract: A defect of a phase shift mask, which has a phase shifter disposed on a transparent substrate, formed into a predetermined pattern and acting to shift a phase of exposure light transmitted therethrough and an etching stopper disposed between the phase shifter and the transparent substrate, which is resistant to an etching to which the phase shifter is subjected and transparent for exposure light is corrected by selectively etching a defective portion of the phase shifter, having a lacking type defect, with respect to the etching stopper layer along the whole thickness of the phase shifter and by perforating a portion of the etching stopper layer and the transparent substrate positioned under the etched defective portion by a depth which corresponds to a magnitude of an optical path of the phase shifter for the exposure light, the etching being a reactive etching which uses charged particle beam and a reactive gas and, the bottom surface of a portion etched being flattened by utilizing a fact that the phase shifter is selectively etched.

    Abstract translation: 具有设置在透明基板上的移相器的相移掩模的缺陷形成为预定图案并且用于移动透过其的曝光光的相位和设置在移相器和透明基板之间的蚀刻阻挡层, 对于移相器经受的蚀刻和曝光的透明度的蚀刻是通过沿相位的整个厚度相对于蚀刻停止层选择性蚀刻缺陷型缺陷的相移器的缺陷部分而被校正的 并且通过将位于蚀刻的缺陷部分下方的蚀刻阻挡层和透明基板的一部分穿孔相当于用于曝光光的移相器的光路的大小的深度,蚀刻是使用的反应性蚀刻 带电粒子束和反应性气体,并且通过利用被蚀刻的部分的底表面变平 移相器被选择性蚀刻的事实。

    Electron microscope
    62.
    发明授权
    Electron microscope 失效
    电子显微镜

    公开(公告)号:US4990776A

    公开(公告)日:1991-02-05

    申请号:US227645

    申请日:1988-08-03

    Abstract: An auto-focusing electron microscope used for the observation, measurement and/or checking of a circuit pattern or the like comprises an objective lens capable of changing a focal position of an electron beam, an optical system for projecting a light and shade pattern having a light-permeable portion and a light-shielding portion onto the surface of a specimen through the objective lens, and a detector for detecting the projected pattern while optically reflecting it, whereby focusing can be made while reducing any damage and/or charging of the specimen.

    Abstract translation: 用于电路图案等的观察,测量和/或检查的自动聚焦电子显微镜包括能够改变电子束的焦点位置的物镜,用于投影具有 光透射部分和遮光部分通过物镜到样本表面上,以及用于在光学反射的同时检测投影图案的检测器,从而可以在减少样本的损伤和/或充电的同时进行聚焦 。

    Electron analysis apparatus with heat-protective shield means spacedly overlying a sample supporting surface
    63.
    发明授权
    Electron analysis apparatus with heat-protective shield means spacedly overlying a sample supporting surface 失效
    电子分析装置与保护性屏蔽装置间隔超过样品支持表面

    公开(公告)号:US3800152A

    公开(公告)日:1974-03-26

    申请号:US20660171

    申请日:1971-12-10

    Inventor: DAIGNE B GIRARD F

    Abstract: To enable visual observation and X-ray analysis of a sample irradiated by an electron beam, a heat-protective assembly overlying a sample-supporting surface includes an enclosure with a central window for the electron beam, a surrounding annular window for light rays and a pair of lateral windows for X-rays emanating from the sample. An inner shield has a frustoconical body, with generatrices converging toward the supporting surface, which gives passage to both the light rays and the electron beam while screening an area surrounding the annular lighttransmissive window of the enclosure without, however, blocking the passage of the X-rays. A set of deflecting plates for the electron beam is mounted on the inner shield, between its frustoconical body and a diaphragm forming the central window, in a zone between the paths of the light rays and the electron beam.

    Abstract translation: 为了对由电子束照射的样品进行目视观察和X射线分析,覆盖样品支撑表面的保温组件包括具有用于电子束的中心窗口的外壳,用于光线的周围环形窗口和 一对用于从样品发出的X射线的侧窗。 内屏蔽件具有截头圆锥体,母线朝向支撑表面会聚,该通孔同时屏蔽外壳的环形透光窗周围的区域,同时通过光线和电子束,而不会阻塞 X光片。 一组用于电子束的偏转板安装在内屏蔽件之间,在它的截头圆锥体和形成中心窗口的光阑之间,在光线和电子束的路径之间的区域中。

    Cost effective probing in high volume manufacture of micro LEDs

    公开(公告)号:US12014896B2

    公开(公告)日:2024-06-18

    申请号:US17579309

    申请日:2022-01-19

    Applicant: ATTOLIGHT AG

    CPC classification number: H01J37/244 H01J37/228

    Abstract: A wafer having μLEDs is inspected using cathodoluminescence microscopes. A fast scan is enabled by splitting the CL beam into several beams and sensing the beams with point detectors. Optical filters are inserted in the optical path upstream of the detectors, such that each detector senses a different frequency band. The signals are ratioed and the ratios are compared to expected reference. Regions of extreme value are identified and, if desired, a high resolution scan is performed on the regions or a sample of the regions. Viability score is calculated for each identified region.

    METHOD OF IMAGING A SPECIMEN USING PTYCHOGRAPHY

    公开(公告)号:US20180019098A1

    公开(公告)日:2018-01-18

    申请号:US15648757

    申请日:2017-07-13

    Applicant: FEI Company

    Abstract: A method of imaging a specimen using ptychography includes directing a charged-particle beam from a source through an illuminator so as to traverse the specimen and land upon a detector, detecting a flux of radiation emanating from the specimen with the detector, calculating at least one property of a charged-particle wavefront exiting the specimen based on using an output of the detector in combination with applying a mathematical reconstruction technique, wherein the at least one property comprises a phase of the wavefront, and wherein applying the mathematical construction technique comprises directly reconstructing the phase of the wavefront to determine a reconstructed phase of the wavefront. An associated apparatus is also described.

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